Skylight



FIG. 1 is a front perspective view of a skylight in accordance with our new design;

FIG. 2 is a rear perspective view thereof;

FIG. 3 is a front elevational view thereof;

FIG. 4 is a right side elevational view thereof, the left and right sides and the top and bottom of the skylight all being symmetrical to one another; and,

FIG. 5 is a rear elevational view thereof.

The broken line showing of portions of the design is included for the purpose of illustrating environment and forms no part of the claimed design. 

The ornamental design for a skylight, as shown and described. 